Granoblastic is an adjective describing an anhedral phaneritic equi-granular metamorphic rock texture. Granoblastic texture is typical of quartzite, marble, charnockites and other non-foliated metamorphic rocks without porphyroblasts.

What does granoblastic texture mean?

of a rock. : having a texture in which the fragments are irregular and angular and appear like a mosaic under the microscope.

What causes granoblastic texture?

Granoblastic texture

is the typical texture formed in metamorphic rocks when grains mutually adjust their boundaries in the solid state in an attempt to achieve textural equilibrium.